baber/WOPTO huggingface dataset:
Patent GB-1117296-A (GB)
Title: Analogue function generator controlled by a binary word
IPC: H03M1/00
Filed: 1967-02-10
Abstract: 1,117,296. Digital - analogue converters. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 10 Feb., 1967 [23 Feb., 1966], No. 6409/67. Heading G4H. An analogue function generator generating a function of the form u(d)=Ur[f(i)+#x(f(i+1)- f(i))] from an n bit binary digit where i is the value of r most significant bits and #x is proportional to the value of the n-r least significant bits includes means 2 (Fig. 2) for generating a function Ur[f(i + 1) - f(i)] which is fed to a circuit 32 for multiplication by the factor #x and means for generating a function Ur[f(i)] which is fed to a summing circuit 33 together with the first generated function to give u(d). The first means 2 includes a unit 2a which gives an input signal on one of 2<SP>r</SP>-1 lines, in accordance with the value of the r most significant bits fed from a register 1, to close one of the contacts 0- . . . 2<SP>r</SP>-1 (Fig. 4) connected to two sets of resistances f(0)G, f(1)G-so that output signals Ur(f(i)) and Ur[f(i+1)-f(i)] are obtained at 2b1, 2b2 respectively. The latter is fed via switches, closed in accordance with the value of the n-r least significant bits, and binary weighted resistances to an amplifier 36 to which is also applied the signal at 2b1. Instead of two sets of resistances f(0)G, - f(1)G- and one set of contacts 0, 1 . . . 2<SP>r-1</SP> the selected line may control the closure of two contacts connected to one bank of resistances (Fig. 5, not shown). The apparatus may be modified to generate functions having positive and negative slopes and positive and negative values. The digitalanalogue converter may be incorporated in the feedback loop of an analogue-digital converter (Fig. 8, not shown).
Patent GB-416050-A (GB)
Title: Improvements in or relating to devices for indicating effective operation of bell and like pushes
IPC: H01H13/02
Filed: 1933-03-03
Abstract: 416,050. Indicating ringing of bells to operators. GARDNER, R. T., 4, Fortescue Road, Paignton, Devon. March 3, 1933, No. 6482. [Class 118 (i).] In a bell or buzzer push of the kind housing a lamp 4 connected in series with the push contacts 7, 6 so as to give a visible indication when the bell is operating, the lamp 4 is located in a recess in the base 1 and is held in position by the contact 6 extending across the top of the bulb. The lamp may be viewed through the translucent button 3 or through a window in the cover 2, or the cover 2 may itself be translucent.
Patent GB-1212168-A (GB)
Title: Nand/nor circuit
Inventor: WHITE STANLEY ARCHIBALD
IPC: H03K19/0948
Filed: 1969-02-06
Abstract: 1,212,168. Electric calculating. NORTH AMERICAN ROCKWELL CORP. 6 Feb., 1969 [1 April, 1968], No. 6544/69. Heading G4A. [Also in Division H3] A NAND/NOR circuit has two sets of three series-connected F.E.T.'s (31, 32, 33 and 34, 35, 36, Fig. 1, not shown) connected in parallel between voltage supply lines, diodes (38, 39) between the function points of the F.E.T.'s of one set and those of the other, binary inputs A,B, and two outputs providing A.B and A+B. Five such NAND/NOR circuits 41, 42, 43, 44, 45, Fig. 4, may be combined in a datarearranging circuit, each circuit 41, 42, 43, 44, 45 receiving two inputs and giving a NAND output at 15<SP>1</SP> and a NOR output at 16<SP>1</SP>. From a parallel byte of input bits X1, X2, X3, X4, an an equivalent output byte Xa, Xb, Xc, Xd is derived with all the 1's in the lowest order positions. The highest order position at which an output 1 appears thus indicates the total number of 1's in the input byte. This circuit is used in a parallel multiplication arrangement.
Patent GB-525769-A (GB)
Title: Improvements relating to gloves
IPC: A41D19/02
Filed: 1939-02-28
Abstract: 525,769. Gloves. GEISSMANN, G. W. Feb. 28, 1939, Nos. 6586, 6587 and 6588. Convention dates, March 1, 1938, April 27, 1938, and June 16, 1938. [Class 141] A glove comprises fourchette strips which extend from the bases and over the tips of certain of the finger portions, the fourchette strips narrowing in width towards the finger tips, and being joined together at the bases of the finger portions at such an angle as to form inclined crotches. The glove, Fig. 7, comprises an outer thumb portion 19, Fig. 2, a member 24, Fig. 3, forming the inner thumb portion 25 and a fourchette 26 for the index finger, fourchettes 30, 31, Fig. 5, for the intermediate fingers, and a member 27, Fig. 4, which forms a fourchette 29 for the little finger and extends to the cuff of the glove. The back and palm portions together with the finger portions are formed from a single blank of material. In a modification, the back and palm portions are formed separately, and the outer thumb portion extends to the cuff of the glove. In a further modification, Fig. 14, the fourchettes are each formed from separate strips which are connected together by seams 67 at the ends of the finger portions. In another modification, the parts of each fourchette are seamed together at the end of a finger portion in overlapping relationship. In a further modification, each fourchette comprises a substantially L-shaped member which is folded at the angle corresponding to the position of a finger crotch. In another modification, the fourchette strip for the index finger extends behind the thumb portion to the cuff of the glove. In a still further modification, the outer portion of the thumb is formed integrally with the palm or back portion or with both portions, or part integrally with the palm portion, and the remaining part with the back portion.
Patent GB-745992-A (GB)
Title: Glass bending apparatus
IPC: C03B23/025
Filed: 1954-03-08
Abstract: 745,992. Bending glass sheets. LIBBEYOWENS-FORD GLASS CO. March 8, 1954 [March 12, 1953], No. 6626/54. Class 56 In the bending of glass sheets, particularly for car windscreens and rear windows, in which the sheets are laid initially like a beam across the open end-sections of moulding frame comprising pivoted centre and end-sections, the sheets are initially supported intermediate their ends and these supports are removed as the mould reaches fully closed position and the sheets become fully shaped. In the form shown in Fig. 4, blocks 42 of heat insulating material are pivoted to arms 41 secured to the sides of the end sections 30. As shown, the sheet 20 is initially supported by the blocks 42 but when the mould has fully closed, the blocks have moved to the position shown in full lines below the surface of the closed mould. In the form shown in Fig. 7, the sheets are supported by heat-insulating bars 79 connected by a pivotal sliding connection to arms 78 secured to the sides of the end sections. Specifications 678,708 and 692,225 are referred to.
Patent GB-548092-A (GB)
Title: Improvements relating to the reduction of sparking at contacts in making and breaking an electric circuit
IPC: H01H47/00
Filed: 1941-05-23
Abstract: 548,092. Sparking-preventing in switches. SIEMENS BROS. & CO., Ltd., and BARTLETT, C. J. C. May 23, 1941, No. 6652. [Class 38 (v)] Sparking at the contacts a of automatic telephone relays is prevented by arranging in shunt to the contacts, or to-the load M, a condenser K in series with a resistance R which is adapted to be short-circuited by the contacts of relay M or by contacts mr of a relay MR operated by M and to remain so short-circuited until M has been disengaged sufficiently long for the energy thereof to be absorbed by the condenser. In Fig. 2 (not shown), the contacts mr are replaced by a unidirectional conducting device which allows the load-energy to pass but prevents the condenser-discharge from passing.
Patent GB-413062-A (GB)
Title: Improvements in electrically driven compression refrigerating machines
IPC: F25B39/04
Filed: 1933-03-04
Abstract: 413,062. Refrigerating. ZANCHI, A., 57, Via Giambellino, Milan, Italy. March 4, 1933, No. 6668. [Class 29.] Compression machines and systems.-In a machine of the kind including a rotary compressor 2 driven by an electric motor 1 and surrounded by a condenser coil 14 in a sealed .casing provided with a purging valve 29, the motor is cooled by the passage therethrough of compressed vapour. Refrigerant vapour and lubricant are drawn into the compressor through the pipes 13, 25 respectively and discharged through a duct 24, having a connection 26 to the upper motor bearing, on to a rotary plate 22, the lubricant being thus separated from the vapour by centrifugal force. The condensed refrigerant flows from the condenser space to a reservoir 17 in the base to which are fitted the cooling water, refrigerant, and electrical connections and valves of the machine. In a modification, the condenser coil is formed with additional turns 141, Fig. 2, and the condensate formed thereon drips on to the motor and is re-evaporated. The condenser cooling water may be circulated by a pump 41, Fig. 7, through a radiator 38 cooled by a fan 44 driven by the pump motor 43. In this case, the motor 43 is arranged to start at the same time as the compressor motor. In another arrangement, the cooling water circulates thermosyphonically through a casing 38, Fig. 6, open to the atmosphere at its ends and having compartments 47 interconnected by cooling pipes 48 disposed in perforate compartments through which atmospheric air circulates.
Patent GB-674445-A (GB)
Title: Desulphurization of ferrochromium by silicon
IPC: C21D3/02
Filed: 1950-03-17
Abstract: Metals and alloys of metals of the same valence groups as copper, titanium, vanadium, chromium, and iron are desulphurized by incorporating with the metal sufficient silicon to form silicon sulphide with the sulphur to be removed, comminuting the mixture, and heating at reduced pressure at a temperature high enough to form silicon sulphide but below the melting point of the material.  The comminuted material may be pelleted before heating. Ferrochromium may have the sulphur reduced from 0.08 per cent to 0.035 per cent by heating at 1250 DEG C for 8 hours at 1 m.m. mercury absolute pressure.  High carbon ferrochromium may be decarburized by incorporating in the mixture an oxidizing agent, e.g. oxidized ferrochromium.  The silicon may be added as the element, as a silicon alloy or as a silicide.
Patent GB-201589-A (GB)
Title: Alloys
IPC: C22C33/04
Filed: 1922-03-07
Abstract: 201,589. Saltrick, W. R. March 7, 1922. Alloys.-High-speed steels or tool steels containing in addition to iron and carbon a number of the metals tungsten, chromium, molybdenum, vanadium, and cobalt, are made by reducing in a furnace a mixture comprising a silicon-containing reducing-agent and reducible ores or compounds of some or all of the required metals, and adding the product to a molten-metal bath either contained in the furnace or in a separate furnace or container. The reducing-agent may be silicon, ferro-silicon, silicides of calcium, aluminium, boron or magnesium, or silicon alloys of magnesium or of aluminium and calcium; and some aluminium or an alloy of aluminium or calcium may be added. A carbide may also be used as part of the reducing-agent. The ores or compounds and the reducing-agents are preferably briquetted, with or without the addition of fluxes, or they may be packed in thin iron containers. A tipping furnace may be used to facilitate the discharge of slag. The alloy obtained may be refined by means of compounds such as chromite or oxide of iron, or by a blowing operation, or by the use of a refining slag, or by two or more such methods. Additions of ferro-alloys, and of carbon in the form of a high-carbon alloy, may be made before or after refining, to adjust the final composition to that required. Reference has been directed by the Comptroller to Specifications 148,380 and 174,312.
Patent GB-609054-A (GB)
Title: Improvements in or relating to security locks
IPC: E05B29/00
Filed: 1946-03-05
Abstract: 609,054. Revolving-barrel locks. MEFINA SOC. ANON. March 5, 1946, No. 6759. Convention date, Sept. 3, 1945. [Class 44] A cylinder for a security lock provided with a series of wards or tumblers movable transversely of the cylinder by a key, is formed from a cylindrical body 1 having an internal opening 2 of approximately rectangular cross-section by machining grooves 3 to such depth that they communicate directly with the internal openings 2 through the smaller sides of its rectangular section to form chambers 4 for accommodating the wands or tumblers. Preferably the smaller sides of the internal opening are formed as a section of the walls of a cylinder coaxial with the body.
Patent GB-867761-A (GB)
Title: Improvements in and relating to the cleaning of coke oven doors
IPC: C10B43/04
Filed: 1960-02-29
Abstract: 867,761. Cleaning coke oven doors. SIMONCARVES Ltd. Feb. 29, 1960 [May 6, 1959], No. 6975/60. Class 99(2). Means for mechnically cleaning condensation deposits from coke oven doors comprises a rectangular frame 20a, Fig. 1, formed from a hollow member adapted to be brought into encircling relationship with the inner surface of a coke oven door, a carriage in the hollow member, means within the hollow member for moving the carriage in a closed doorencircling circuit therewithin, means on the carriage projecting from the hollow member on the inner periphery of the rectangular frame, scraper means resiliently attached to the projecting means externally of the hollow member and means to move the carriage in the closed circuit. The scraper means comprises a scraper portion 51 adapted to lie parallel with the plane of the door 10, Fig. 3, when the door is encircled by the frame and is adapted to move into scraping engagement with the sealing edge 12 of the sealing strip 11 on the door upon engagement of the scraper portion with a condensation deposit on the sealing edge when the door and frame are brought into encircling relationship and upon activation of the means to move the carriage in the closed circuit. The frame 20a is supported by pins 19 in eyes 18 formed at the lower ends of spaced vertical arms 18a depending from a supporting structure 17, and is provided with a bifurcated lug 26, Fig. 3, forming two spaced members 27 between which a lug 25 on the door fits. Cam surfaces 28, 29 hold the frame into exact co-operation with the door. The scraper 51 is arranged on a carriage consisting of a base plate 30 from which extend two spaced webs 31 on which are rotatably mounted two flanged wheels 32, Fig. 6, running on continuous rails 34, 35. The carriage is connected to two roller chains 36 and 37 by a bolt 42, a connecting rod 43 and rod 44 which is secured at each end to a coupling link 45 inserted in each chain. The scraper 51 is secured to a spindle 46 axially slidable and rotatable in a boss 47. A spring 48 is provided to project spindle 46 from the boss 47 until cap 49 engages the boss and also to provide a torque tending to turn the spindle so that scraper 51 lies at 90 degrees to the surface 12. When the carriage is moved, by the chains 36 and 37 driven by a motor 41, Fig. 1, through driving sprocket 39 connected to sprocket 38 over which the chain passes, the scraper 51 moves so that the knife edge 53, Fig. 3, comes into scraping engagement with the inner surface of the strip 11. A second similar carriage, connected to the two chains' 36 and 37, may be provided, on which a scraper blade is resiliently and pivotally associated with the projecting means of the second carriage and adapted to be brought into scraping engagement with a plug portion 13 of the oven door. The chains may carry two or four pairs of carriages as above.
Patent GB-540644-A (GB)
Title: Improvements in or relating to the production of cellulose derivatives
IPC: C08B15/00
Filed: 1940-04-19
Abstract: 540,644. Cellulose derivatives. DREYFUS, H. April 19, 1940, No. 7069. [Class 2 (ii)] A sulphur-containing cellulose derivative is obtained by subjecting an unsaturated organic cellulose derivative to the action of a bisulphite. The unsaturated derivative of cellulose may be cellulose crotonate, maleate, linolenate, oleate, ricinoleate, undecylenate, or cinnamate, or allyl, or crotyl cellulose ether. Instead of using a bisulphite, a sulphite may be employed when the reaction conditions are such as to convert it into a bisulphite, e.g. a re-action mixture containing a sulphite may be used and sulphur dioxide may be passed through, or a sulphite may be used with an unsaturated cellulose derivative containing a free acidic group, e.g. cellulose maleate, in which case intermediate formation of bisulphite probably occurs. The treatment results in the formation of a cellulose derivative containing a sulphonic acid radical or a salt thereof. The re-action may be effected by heating the unsaturated cellulose derivative with sodium, potassium, or other bisulphite in a liquid which is a solvent for the bisulphite, e.g. water, or an aqueous solution of dioxane or other organic liquid which has a solvent or swelling action on the cellulose derivative. The mixture may be heated to boiling under reflux for several hours. The process is applicable to simple cellulose derivatives which contain only one type of substituent radical or to those containing two or more types one or more of which is an unsaturated radical, e.g. cellulose acetate oleate, or crotyl cellulose acetate. The products obtained by the process are readily dispersed or dissolved in water or liquids containing a high proportion of water.
Patent GB-196770-A (GB)
Title: Improvements in the construction of motor vehicles employing friction-drive transmission
IPC: F16H15/28
Filed: 1922-03-10
Abstract: 196,770. Smith, T. C. March 10, 1922. Frame components, applying and combining; secondary frames.-The main frame comprises a triangular structure 1 together with rods 3 converging from the ends cf the front axle and connected to the structure 1 by a ball-and-socket joint. An auxiliary frame 26 pivotally and slidably connected at 5 to the main frame carries the engine 9 and a driving disc 12 of friction variable gear.
Patent GB-491097-A (GB)
Title: Improvements in anti-dazzle devices for head lamps
IPC: F21S8/10
Filed: 1937-03-11
Abstract: 491,097. Polarizing devices for headlamps. WIEMER, K., and SCHNEIDER AKT.-GES., H. March 11, 1937, No. 7216. Convention date, March 16, 1936. Addition to 472,232, [Group XI]. [Class 97 (i)] [Also in Group XI] A polarizing element to be disposed, as described in the parent Specification, between the light source and the reflector of a headlamp, is tubular and comprises a plurality of polarizer elements arranged lengthwise with their longitudinal edges in contact with one another, the planes of polarization of the elements making different angles with the optical axis of the headlamp, and the angle changing progressively from one polarizer element to the next by such steps that the aggregate change amounts to 90‹ in each quadrant. The elements may be mounted on a cylindrical or polygonal transparent hollow base. The elements may be of synthetic dichroic foil, which is a transparent film with a thin layer of small crystals of iodoquinine sulphate, the crystals having their polarizing axes substantially parallel. In the form shown, two circular pieces of dichroic foil have each been divided into sectors which are placed around a glass cylinder A. The sectors 1, 2 ... 12 of one circular piece fit between the sectors 13, 14 ... of the other piece, and the planes of polarization are as indicated by the hatching. The elements may alternatively be narrow rectangular plates. Tourmaline plates may be used without a supporting base.
Patent GB-491894-A (GB)
Title: Improvements in or relating to esters of acrylic acid and polymerisation products thereof
Inventor: NEHER HARRY TRAINOR
IPC: C08F20/18
Filed: 1937-03-12
Abstract: Acrylic acid esters are manufactured by reacting secondary or tertiary butyl or amyl alcohols with acrylic acid, preferably in the presence of a dehydrating agent, with an acrylic acid halide or with acrylic anhydride.  In examples, acrylyl chloride is reacted in the presence of calcium carbonate with: (1) butanol-2 to produce sec.-butyl acrylate; (2) tert.-butyl alcohol to produce tert.-butyl acrylate; (3) pentanol-2 to produce sec.-amyl acrylate; (4) tert.-amyl alcohol to produce tert.amyl acrylate. Diethylcarbinol and methylisopropylcarbinol are also specified as starting materials. Polymerization products are manufactured by subjecting to polymerization, under the action of heat, irradiation or both, acrylic acid secondary or tertiary butyl or amyl esters, alone or in admixture with one another or with other substances, e.g. other esters of acrylic acid, esters of methacrylic acid, vinyl esters, ethers and ketones, acrylic and methacrylic acid halides, amides, nitriles and anhydrides, isoprene, butadiene or styrene.  The polymerization may be effected in the presence of polymerization catalysts, e.g. organic or inorganic peroxides, oxygen or ozone, and may be carried out on the monomer alone, or dissolved in a solvent, which may be a non-solvent for the polymer, or suspended in a non-solvent, e.g. water, with or without emulsifying agents. The products may be obtained in the form of sheets, blocks or rods by effecting polymerization in a mould, preferably under pressure or in the presence of a terpene hydrocarbon to prevent the formation of bubbles.  Useful articles may also be prepared from the polymers by moulding, turning or extrusion.  The products may also be used for adhesives, electrical insulators or interlayers in laminated glass, or as coating-compositions, which may be obtained by polymerization in solution, with the addition, if desired, of pigments, fillers and colouring materials before, during or after polymerization.  For moulding there may be added plasticizers, e.g. the ester of phthalic acid, camphor or acetone, whilst mould lubricants, e.g. mineral oils, neat's foot oil, stearic or oleic acid, may be used directly in the mould or incorporated in the polymer.  The polymerization of the products of the examples above is described.